projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7283f862 TZ |
1 | /* SPDX-License-Identifier: MIT */ |
| 2 | ||
| 3 | #ifndef _LINUX_APERTURE_H_ | |
| 4 | #define _LINUX_APERTURE_H_ | |
| 5 | ||
| 6 | #include <linux/types.h> | |
| 7 | ||
| 8 | struct pci_dev; | |
| 9 | struct platform_device; | |
| 10 | ||
| 11 | #if defined(CONFIG_APERTURE_HELPERS) | |
| 12 | int devm_aperture_acquire_for_platform_device(struct platform_device *pdev, | |
| 13 | resource_size_t base, | |
| 14 | resource_size_t size); | |
| 15 | ||
| 16 | int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size, | |
| 17 | bool primary, const char *name); | |
| 18 | ||
| 19 | int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name); | |
| 20 | #else | |
| 21 | static inline int devm_aperture_acquire_for_platform_device(struct platform_device *pdev, | |
| 22 | resource_size_t base, | |
| 23 | resource_size_t size) | |
| 24 | { | |
| 25 | return 0; | |
| 26 | } | |
| 27 | ||
| 28 | static inline int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size, | |
| 29 | bool primary, const char *name) | |
| 30 | { | |
| 31 | return 0; | |
| 32 | } | |
| 33 | ||
| 34 | static inline int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name) | |
| 35 | { | |
| 36 | return 0; | |
| 37 | } | |
| 38 | #endif | |
| 39 | ||
| 40 | /** | |
| 41 | * aperture_remove_all_conflicting_devices - remove all existing framebuffers | |
| 42 | * @primary: also kick vga16fb if present; only relevant for VGA devices | |
| 43 | * @name: a descriptive name of the requesting driver | |
| 44 | * | |
| 45 | * This function removes all graphics device drivers. Use this function on systems | |
| 46 | * that can have their framebuffer located anywhere in memory. | |
| 47 | * | |
| 48 | * Returns: | |
| 49 | * 0 on success, or a negative errno code otherwise | |
| 50 | */ | |
| 51 | static inline int aperture_remove_all_conflicting_devices(bool primary, const char *name) | |
| 52 | { | |
| 53 | return aperture_remove_conflicting_devices(0, (resource_size_t)-1, primary, name); | |
| 54 | } | |
| 55 | ||
| 56 | #endif |